Last updated: 2026-01-15Substack Notes Scheduler respects your privacy. This extension is designed to operate locally in your browser and only processes data required to provide its single purpose: scheduling and publishing Substack Notes on the user’s behalf.
The extension does not collect personally identifiable information such as name, email address, physical address, location, financial information, health data, or authentication credentials.The only data processed by the extension is user-created content and settings required for scheduling, including:Substack Note text created by the userDrafts and queued NotesScheduled posting timesPosting status and historyPreferred posting time settingsAll data is created and controlled by the user.
User data is used solely to:Save drafts and scheduled Notes locallySchedule Notes for future publishingPublish Notes to the user’s own Substack account at user-defined timesDisplay posting history and status within the extension interfaceThe extension does not analyze, profile, or monitor user behavior outside of these functions.
When a user chooses to publish or schedule a Note, the user-created Note content is sent directly to Substack’s servers solely to create a post on the user’s own Substack account while the user is signed in.The extension does not sell, transfer, or share user data with third parties.
No data is shared for advertising, analytics, or marketing purposes.
The extension requests the following permissions:Storage: to save Notes, drafts, schedules, and settings locallyAlarms: to trigger scheduled publishing at the correct timeNotifications: to inform the user when a Note is successfully posted or fails to postHost access to substack.com: to publish Notes on behalf of the userAll permissions are used strictly to support the extension’s single stated purpose.
Users can edit or delete drafts, queued Notes, and posting history at any time within the extension.
Uninstalling the extension removes all locally stored data.